Portable dark room



Feb. 27, 1923. 1,446,762

T. MoRYKwAs PORTABLE DARK ROOM 2 sheets-sheet l Filed sept.. 9, 1921 Feb, 27, 1923.

T. MORYKWAS PORTABLE DARK ROOM Filed Sept, 9, 1921 2 sheens-sheet 2 Patented Feb. 27, 1923.

UNITED STATES A 1,445,162 PATENT OFFICE.

TEPHAIN' MORYKWAS, OF HOBOKEN, NEW JERSEY.

PORTABLE DARK ROOM.

Application filed September 9, 1921. Serial No. 499,390.

To all whom it muy concern:

Be 1t known that I, TBPHAN Monriiwns,

residing at Hoboken, in the county of Hud' son and State of New Jersey, have invented u' certain'new nndnseful Improvements in :i Portable Dark Room; and l do hereby dc clare thc followingl to bc a full, clear1 and exact description of the invention, such as will enable others skilled in the art to which it appertoins to nmlie and use the same.

4Photographic negatives ure generally developed andxed in dark rooms in which the work may-bc observed, bubfro'nrivhieh actinic light rays are excluded.

-The invention I provides a contrivanre possessing all theA requirements ofa dark room,- but whichV is furthermore portable, light and capable of being reduced toa conipact form for convenienceof handling and minimizing space and which may be quickly Set up for use or folded as required.-

"Other objects and advantages will. heapparent-'and suggest themselves'as the nature of the invention is understood. A

ment of the invention it is to" be understood that in adapting the same to meet"dili"e`reiit conditions und requirements, variouschanges in the form, proportionand 'minor'details of construction may be resorted to without de arting from the nature of the invention.

eferrmg to the accompanying drawings forming a part of the specification7 Figure 1 is a perspective view of-a portable dark room embodying the invention showing the same reduced to compact form.

Figure 2 is a perspective view of the de vice as it appears when set up for use.

Figure 3 is :i vertical longitudinal section on the line 3 2. ot' Figure 2 looking in the direction of the arrows, and

Figure 4 is a detail horizontal section on the line 4-4 of `Figure 3.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The device comprises a case and :i hood, the latter being of suitable textile which will exclude rays of light and which is of such formation :is to enclose the head. shoulders and arms otl the operator und permit of unhanipered per formant-e of the required work incident to developing und tixingr 55 photographic negutires.

' lhcl ense rompriscs :i relatively lower serl/Vhile the. drawings illustrate an enibodi-4 tion A and an upper section B. These two sections are hingedly connected, as indicated :it l, and when closed are made secure by suitable fastening means, as indicated-most clearly in Figure 1. The lowersection A is provided with a handle 2 for convenience of carrying and manipulating the device. Thi` lower section A is provided With` ahinged front 3 which is adapted tofbe lowered into 65 horizontal position; as indicated most clearly inv FiguresfQ and 3. Stays 4 support the front 3 in horizontal position andmay consist of cord or iexble connection; The top of the upper section B is provided with ani'o opening fitted witha rubyglass; 5 for. theadmisslon of 'light and excluding actinic rays. Sockets 6 are provided-at the upper forward corners `of the ends" of` the Alov'ver sections A to receive the -endsofzif bow -7 75 whereby the upper--portionnof ythe hood; is. supported. Y. lc- ,brcef connects-the upper portion-.ofthebowZE-vvith thertop portion.: o'the. upper section; B whom-the? `latter -isin open or vertical position. The brace/` 80 sustainsfthefu perrportionothe-ihood ard formsajstay. onfthebowj Il-rfa '.'f'rgmr '-Y The-:hood --9- oE.;;t-ubulanftorm end.: 'com sists of. suitabletexti l and 'its 'forward or?" tion; is atta C h'edtCr-theedges i'of thefsections; 85 A and B so as to form a close joint therewith and admit of said sections opening and closing. When the case is closed the hood is contained therein and housed and protected thereby. When the case is open and the device set up for use the parts 7 and 8 support the upper forward portion of the hood. The rear portion of the hood contains an elastic 10 or draw string for contracting the same about the body of the operator after the head, shoulders and the upper portion of the body have been ntroduced into the hood. The bottom of the lower section A and its front 3 form a shelf or support for receiving the various articles incident to developing and fixing photographic negatives. Provision is had for ventilation while excluding actinic light rays. A tortuous nir passage is provided in the front and ends of the, upper sections B. The front of the upper section B is provided with a narrow opening 11 which constitutes an cir inlet. A similar opening 1Q is formed in the inner portion of the front and constitutes an air outlet. The openings 11o ll and 12 are preferably out of line und nre connected by means of s tortuous passage lil whivh while admitting' uil; excludes light rays, Thetortuous nir pnssug'e 13 is l'orined hy staggered partitions i4. The ends ol the upper seetion B have outer narrow openings 15 for the ingress of uir and inner narrow openings lo for the egress of uLr. These openings l5 :1nd lli muy be in alignment but are connerted by menus of n iorti'ons passage 1I which provides for u free eirrnlation ofair while excluding nrtini:L light rays.

Having thus described the invention. what l olaini ist- 1. A por-table dork moin conprisiugr n rase including relatively upperund lower seetions hinged-ly connected and :i tubular hood connected at its forward edve to the edges ofthe res eetive seetions :.uirl'ndnpted to be heldA extended thereby und means for drawing` the opposite end: portion of the hoodV about the bod-y of] the operator.`

S3. Ag portebledorlr room comprising rela tively upper and loweri sections liingedly connected, the lowerK section having its front hinged to.swingfoutwardly'afnd downwardly int@ open position5 means for supporting saidffront in hor-izontaflposition and e tubulr hood-'having its forward portion connected ,to the edges of 'the respective sections and held extendedtl-ierebyand having its opposite end portion proyided with means for draw-ing'thersumeeflose aboutthe body of' the operator.

31 portable dark room comprising relatively upper and! lowery |seotions hingedly conneet/ed, a tubularhoodiconnected at one endfrto they-edges of therespeetive sections and: adapted to be held extended thereby and u b owrhaving connection with the forward portions of` the ends of the lower seetions und udapted to support the upper loi-wurd portion of. the hood.

4. A. portable dark rooni uoniprising relie tively upper und lower -qeetions hingodly connected` the lower section having its front hinged and adapted to swing outwardly and downwardly, sockets at the upper forward corners of-the ends of the lower sections, a bow having detachable connection with the sockets and a tubular hood having;` its forward end connected to the respective sections und its upper forward portion supported by the said bow.

A portable dni-k room comprising rolatively upper and lower l:gestions hingedly connected, the upper. section being provided with tortuous air passages und theloWer-see tion having its front-ondtoswing outwardly and downwardly., means for supporting'seidA front in horizontal position, a bow detach.-V ably connected to=the for-ward end of' the lower section, a. base `:between'the upper portion of the bow and'the front of the upper section and a. tubular hood connected :iti its forward end tothe respeotivesections und' havingits upper forwandwportion supported by means ofV the said bow andwbraeqthe op,- posite end of the hood being adapted tp be drawn close aboutthe body. ofi theopemtor.

In testimony whereof I 1n" signature in presence of two witnesses.

TEPHAN MORYKWAS,

itnessesz HARRY JAGGsoN, N oRMAN KLISGH. 

